When ActiveX programs are improperly configured or tampered with in the registry by malicious tools, they may cause errors in Legacy possibly related to Internet functions. (Legacy uses Internet Explorer as its internal web browser.) Start with steps 1 through 5:
Run your antivirus program to remove viruses and other threats from your computer that can damage ActiveX components.
Spyware can also damage ActiveX components. Spyware is a problem that many anti-virus applications do not cover.
An ActiveX error might be related to a missing DLL. Do a clean re-installation of Legacy.
LEGACY: Do a clean removal of Legacy by following the directions at Uninstall - how to do a complete and totally clean removal of Legacy. Next do the free downland at https://legacyfamilytree.com/download-update. and use your customer number to unlock the deluxe features.Update Internet Explorer through your Control Panel. Do this even if Internet Explorer is not your default browser. Restart your computer and try Legacy again. If it works, stop here
In Internet Explorer, go to Tools > Internet Options. Select the Advanced tab and scroll down to Security. Uncheck the box that says Allow active content to run in files on My Computer. You will have to restart your computer for this to take effect. Try Legacy again. If it works, stop here.
If the above steps do not fix the ActiveX problem then do the following:
Many ActiveX problems occur first in the registry. Running a registry cleaner or repair tool usually restores missing ActiveX keys. We have had success with Ccleaner from Piriform. You can download the free version at https://www.ccleaner.com/ccleaner/download. Optionally visit https://download.cnet.com/free-window-registry-repair/3000-2086_4-10606555.html. This is a reputable site that also offers a program called Free Window Registry Repair. The download is free and there is a video preview that you can watch.
Another step you can take to solve ActiveX errors involves resetting a system file which may be misconfigured. Close Legacy and any browser windows before you begin.
Go to the Start button
Choose Run
Type in: regsvr32 msxml3.dll
Click OK
Click OK again when promptedCopy DAO360.DLL from the C:\Program Files (x86)\Common Files\microsoft shared\DAO folder into the C:\Windows\SysWOW64 folder and theC:\Windows\System32 folder. This should fix the problem. Make sure Legacy is closed when you do this and your computer will probably ask for Administrative approval, so give it. Try Legacy again, if it works so stop here. You are done.
You can also try a System Restore. See Windows - How do I do a System Restore to undo changes to my computer?